0 a subatomic particle of light or other electromagnetic radiation that is used as a unit of electromagnetic energy -- โฟตอน
All light is made of photons.
The entrapment of radiation will make a photon be emitted and resonance-reabsorbed many times inside the laser material.
Suppression of the potential well prevents the free electrons from recombination and, thus, no high-energy photon can be emitted.
The photon counting histogram in fluorescence fluctuation spectroscopy.
However, a significant radiated energy can be achieved since all the electrons scattered in the photon mirror will radiate.
We can see that the photon energy is enlarged greatly in the laboratory frame because of the relativistic effect.
To look at alterations in photon responses, dim flashes of light were presented in the presence or absence of steady background illumination.
Following the injection of such pulses into strongly scattering media, such as tissue, the time dispersion of the photons can be studied.
One detection scheme presently in use requires optical band-pass filters appropriately designed to bin emitted fluorescence photons of desired target molecules.
